Nisin is a polycyclic antibacterial peptide with 34 amino acid residues used as a food preservative. It contains the uncommon amino acids lanthionine (Lan), methyllanthionine (MeLan), didehydroalanine (Dha) and didehydroaminobutyric acid (Dhb). These unusual amino acids are introduced by posttranslational modification of the precursor peptide. In ...
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http://en.wikipedia.org/wiki/Nisin
(from the article `food additive`) ...botulinum in cured meat products (e.g., ham and bacon). Sulfur dioxide and sulfites are used to control the growth of spoilage microorganisms in ...
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http://www.britannica.com/eb/a-z/n/44
<chemical> A 34-amino acid polypeptide antibiotic produced by streptococcus lactis. It has been used as a food preservative in canned fruits and vegetables, and cheese. ... Pharmacological action: antibiotics, peptide, food preservatives. ... Chemical name: Nisin ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: nī′sin Definitions: 1. A polypeptide antibiotic produced by Streptococcus lactis; active against certain streptococci, Mycobacterium tuberculosis, Clostridium difficile, and other bacteria.
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http://www.medilexicon.com/medicaldictionary.php?t=60498
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